The classic Keel, everyone has either ridden, seen, or held one before!
First originating in San Diego, CA in the mid-late 60s, surfer and designer Steve Lis brought kneeboard design of short, wide, and volume-full boards to the mainstream in a fun board for small rampy waves.
Much like its name suggests, the keel is a parallel, cruisey keel-fin twin for long points or beach breaks. The keel has even foam throughout, giving the board a much larger feel than they often are. The swallow tail, when on rail, holds the board on the face as each swallow acts as a pin when going through turns. This angle allows the board to feel holdy and allows projection when getting around sections or laying down turns on the face.